The compression ratio of external combustion engine or internal combustion engine is nothing but the capacity of air in the cylinder after compression and capacity of air before compression. In the piston engine, this ratio amongst the cylinder volume and the combustion chamber while the piston is in the position of bottom of the stroke as well as the combustion chamber volume while the piston is in the position of the top of the stroke. The compression ratio is desired to be higher as it permits the engine to offer more mechanical energy through a given accumulation of air and fuel mixture. As compared to piston the engine, the engine those are powered by the diesel fuel function on the theory of compression ignition. Because of this the fuel that resist auto ignition can even cause late ignition. The compression ratio for petrol and diesel engines is different.

Common Rail and Common Rail Injection System has same concept.

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Must admit we are surprised at your query, as the SUVs you are comparing are not comparable at all. The only reason we believe that you are looking at price and variant details for Ford Endeavour, Toy....Read More